A trio of trappers were patrolling remote backroads when a 16-foot python jumped out. They teamed up to capture it.

Changes in demand levels as a function of a product's price relative ... inferior good rises and demand goes up because consumers use more of it in place of costlier alternatives.

P平均每年需要花费近2万美元来进行维护，小学校难以承担这样的成本，相较之下， Articles ...

Abstract: This brief is concerned with the stability of a neural network with a time-varying delay using the quadratic function negative-definiteness approach reported recently. A more general ...